ci-upstream-net-kasan-gce/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci-upstream-net-kasan-gce/syz-executor1432561296 <...> Warning: Permanently added '10.128.1.153' (ED25519) to the list of known hosts. execve("ci-upstream-net-kasan-gce/syz-executor1432561296", ["ci-upstream-net-kasan-gce/syz-executor1432561296"], 0x7ffccacedad0 /* 10 vars */) = 0 brk(NULL) = 0x555561808000 brk(0x555561808d80) = 0x555561808d80 arch_prctl(ARCH_SET_FS, 0x555561808400) = 0 set_tid_address(0x5555618086d0) = 5651 set_robust_list(0x5555618086e0, 24) = 0 rseq({cpu_id_start=0, cpu_id=RSEQ_CPU_ID_UNINITIALIZED, rseq_cs=NULL, flags=0, node_id=0, mm_cid=0, slice_ctrl={request=0, granted=0, __reserved=0}, __reserved=0}, 33, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlinkat(AT_FDCWD, "/proc/self/exe", "/root/ci-upstream-net-kasan-gce/syz-executor1432561296", 4096) = 54 getrandom("\x4f\xe5\xa3\x03\xfa\x83\xcb\x5d", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555561808d80 brk(0x555561829d80) = 0x555561829d80 brk(0x55556182a000) = 0x55556182a000 mprotect(0x7f9b45cd6000, 20480, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-net-kasan-gce/strace-static-x86_64: Process 5652 attached [pid 5652] set_robust_list(0x5555618086e0, 24 [pid 5651] <... clone resumed>, child_tidptr=0x5555618086d0) = 5652 [pid 5652] <... set_robust_list resumed>) = 0 [pid 5652] rt_sigprocmask(SIG_SETMASK, [] [pid 5651] rt_sigprocmask(SIG_SETMASK, [] [pid 5652] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5652] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5652] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5651] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5651] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 ci-upstream-net-kasan-gce/strace-static-x86_64: Process 5653 attached [pid 5651] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5653] set_robust_list(0x5555618086e0, 24 [pid 5652] <... clone resumed>, child_tidptr=0x5555618086d0) = 5653 [pid 5653] <... set_robust_list resumed>) = 0 [pid 5652] rt_sigprocmask(SIG_SETMASK, [] [pid 5653] rt_sigprocmask(SIG_SETMASK, [] [pid 5652] <... rt_sigprocmask resumed>, NULL, 8) = 0 ci-upstream-net-kasan-gce/strace-static-x86_64: Process 5654 attached [pid 5651] <... clone resumed>, child_tidptr=0x5555618086d0) = 5654 [pid 5653] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5651] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5651] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5654] set_robust_list(0x5555618086e0, 24 [pid 5653] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5651] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5654] <... set_robust_list resumed>) = 0 [pid 5653] <... prctl resumed>) = 0 [pid 5651] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5654] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 5653] setpgid(0, 0ci-upstream-net-kasan-gce/strace-static-x86_64: Process 5655 attached ) = 0 [pid 5651] <... clone resumed>, child_tidptr=0x5555618086d0) = 5655 [pid 5655] set_robust_list(0x5555618086e0, 24 [pid 5651] rt_sigprocmask(SIG_SETMASK, [] [pid 5653] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5651] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5655] <... set_robust_list resumed>) = 0 [pid 5651] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5655] rt_sigprocmask(SIG_SETMASK, [] [pid 5651] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5651] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5655] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5654] rt_sigprocmask(SIG_BLOCK, ~[]ci-upstream-net-kasan-gce/strace-static-x86_64: Process 5656 attached [pid 5653] <... openat resumed>) = 3 [pid 5654] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5653] write(3, "1000", 4 [pid 5656] set_robust_list(0x5555618086e0, 24 [pid 5654] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5653] <... write resumed>) = 4 [pid 5655] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5655] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLDci-upstream-net-kasan-gce/strace-static-x86_64: Process 5658 attached ci-upstream-net-kasan-gce/strace-static-x86_64: Process 5657 attached [pid 5651] <... clone resumed>, child_tidptr=0x5555618086d0) = 5656 [pid 5656] <... set_robust_list resumed>) = 0 [pid 5653] close(3 [pid 5657] set_robust_list(0x5555618086e0, 24 [pid 5658] set_robust_list(0x5555618086e0, 24 [pid 5657] <... set_robust_list resumed>) = 0 [pid 5657] rt_sigprocmask(SIG_SETMASK, [] [pid 5651] rt_sigprocmask(SIG_SETMASK, [] [pid 5658] <... set_robust_list resumed>) = 0 [pid 5657] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5656] rt_sigprocmask(SIG_SETMASK, [] [pid 5655] <... clone resumed>, child_tidptr=0x5555618086d0) = 5658 [pid 5654] <... clone resumed>, child_tidptr=0x5555618086d0) = 5657 [pid 5653] <... close resumed>) = 0 [pid 5651] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5658] rt_sigprocmask(SIG_SETMASK, [] [pid 5657] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5656] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5655] rt_sigprocmask(SIG_SETMASK, [] [pid 5654] rt_sigprocmask(SIG_SETMASK, [] executing program [pid 5653] write(1, "executing program\n", 18 [pid 5651] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5658] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5657] <... prctl resumed>) = 0 [pid 5656] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5655] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5654] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5653] <... write resumed>) = 18 [pid 5651] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5658] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5657] setpgid(0, 0 [pid 5656] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5653] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5651] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5657] <... setpgid resumed>) = 0 [pid 5658] <... prctl resumed>) = 0 [pid 5656] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5653] <... socket resumed>) = 3 ci-upstream-net-kasan-gce/strace-static-x86_64: Process 5659 attached [pid 5657] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5653] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=84, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST, nlmsg_seq=7388453, nlmsg_pid=635427836}, "\x06\x00\x00\x81\x00\x00\x00\x00\x08\x00\x10\x00\xf1\xff\x00\x00\x0e\x00\x10\x00\x06\x00\x05\x00\xfc\x00\x00\x00\x28\x00\x08\x80\x1c\x00\x11\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x09\x00\x00\x00\x08\x00\x00\x00\x02\x00\x00\x00\x08\x00\x1b\x00\x00\x00\x00\x00"], iov_len=84}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_CONFIRM|MSG_NOSIGNAL|MSG_MORE|MSG_ZEROCOPY}, 0ci-upstream-net-kasan-gce/strace-static-x86_64: Process 5660 attached [pid 5651] <... clone resumed>, child_tidptr=0x5555618086d0) = 5659 [pid 5659] set_robust_list(0x5555618086e0, 24 [pid 5658] setpgid(0, 0 [pid 5657] <... openat resumed>) = 3 [pid 5651] rt_sigprocmask(SIG_SETMASK, [] [pid 5660] set_robust_list(0x5555618086e0, 24 [pid 5659] <... set_robust_list resumed>) = 0 [pid 5658] <... setpgid resumed>) = 0 [pid 5657] write(3, "1000", 4 [pid 5659] rt_sigprocmask(SIG_SETMASK, [] [pid 5658] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5659] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5658] <... openat resumed>) = 3 [pid 5657] <... write resumed>) = 4 [pid 5659] rt_sigprocmask(SIG_BLOCK, ~[] [pid 5657] close(3 [pid 5651] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5660] <... set_robust_list resumed>) = 0 [pid 5659] <... rt_sigprocmask resumed>, [], 8) = 0 [pid 5657] <... close resumed>) = 0 [pid 5660] rt_sigprocmask(SIG_SETMASK, [] [pid 5659] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 5658] write(3, "1000", 4 [pid 5657] write(1, "executing program\n", 18 [pid 5660] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5658] <... write resumed>) = 4 [pid 5657] <... write resumed>) = 18 [pid 5656] <... clone resumed>, child_tidptr=0x5555618086d0) = 5660 [pid 5660] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5657] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTEci-upstream-net-kasan-gce/strace-static-x86_64: Process 5661 attached executing program [pid 5660] <... prctl resumed>) = 0 [pid 5658] close(3 [pid 5657] <... socket resumed>) = 3 [pid 5656] rt_sigprocmask(SIG_SETMASK, [] [pid 5658] <... close resumed>) = 0 [pid 5658] write(1, "executing program\n", 18 executing program [pid 5657] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=84, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST, nlmsg_seq=7388453, nlmsg_pid=635427836}, "\x06\x00\x00\x81\x00\x00\x00\x00\x08\x00\x10\x00\xf1\xff\x00\x00\x0e\x00\x10\x00\x06\x00\x05\x00\xfc\x00\x00\x00\x28\x00\x08\x80\x1c\x00\x11\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x09\x00\x00\x00\x08\x00\x00\x00\x02\x00\x00\x00\x08\x00\x1b\x00\x00\x00\x00\x00"], iov_len=84}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_CONFIRM|MSG_NOSIGNAL|MSG_MORE|MSG_ZEROCOPY}, 0 [pid 5656] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5661] set_robust_list(0x5555618086e0, 24 [pid 5660] setpgid(0, 0 [pid 5659] <... clone resumed>, child_tidptr=0x5555618086d0) = 5661 [pid 5658] <... write resumed>) = 18 [pid 5661] <... set_robust_list resumed>) = 0 [pid 5660] <... setpgid resumed>) = 0 [pid 5659] rt_sigprocmask(SIG_SETMASK, [] [pid 5658] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE [pid 5661] rt_sigprocmask(SIG_SETMASK, [] [pid 5660] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 5659] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5658] <... socket resumed>) = 3 [pid 5661] <... rt_sigprocmask resumed>, NULL, 8) = 0 [pid 5660] <... openat resumed>) = 3 [pid 5658] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=84, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST, nlmsg_seq=7388453, nlmsg_pid=635427836}, "\x06\x00\x00\x81\x00\x00\x00\x00\x08\x00\x10\x00\xf1\xff\x00\x00\x0e\x00\x10\x00\x06\x00\x05\x00\xfc\x00\x00\x00\x28\x00\x08\x80\x1c\x00\x11\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x09\x00\x00\x00\x08\x00\x00\x00\x02\x00\x00\x00\x08\x00\x1b\x00\x00\x00\x00\x00"], iov_len=84}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_CONFIRM|MSG_NOSIGNAL|MSG_MORE|MSG_ZEROCOPY}, 0 [pid 5660] write(3, "1000", 4) = 4 [pid 5660] close(3) = 0 [pid 5660] write(1, "executing program\n", 18) = 18 [pid 5660] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 executing program [pid 5660] sendmsg(3, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base=[{nlmsg_len=84, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST, nlmsg_seq=7388453, nlmsg_pid=635427836}, "\x06\x00\x00\x81\x00\x00\x00\x00\x08\x00\x10\x00\xf1\xff\x00\x00\x0e\x00\x10\x00\x06\x00\x05\x00\xfc\x00\x00\x00\x28\x00\x08\x80\x1c\x00\x11\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x09\x00\x00\x00\x08\x00\x00\x00\x02\x00\x00\x00\x08\x00\x1b\x00\x00\x00\x00\x00"], iov_len=84}], msg_iovlen=1, msg_controllen=0, msg_flags=MSG_CONFIRM|MSG_NOSIGNAL|MSG_MORE|MSG_ZEROCOPY}, 0 [pid 5661] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5661] setpgid(0, 0) = 0 [pid 5661] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [ 142.198722][ T5653] netlink: 'syz-executor143': attribute type 16 has an invalid length. [ 142.198769][ T5653] netlink: 'syz-executor143': attribute type 17 has an invalid length. [ 142.205550][ T5657] netlink: 'syz-executor143': attribute type 16 has an invalid length. [ 142.205569][ T5657] netlink: 'syz-executor143': attribute type 17 has an invalid length. [ 142.209762][ T5658] netlink: 'syz-executor143': attribute type 16 has an invalid length. [pid 5661] write(3, "1000", 4) = 4 [pid 5661] close(3) = 0 [ 142.209779][ T5658] netlink: 'syz-executor143': attribute type 17 has an invalid length. [ 142.212116][ T5660] netlink: 'syz-executor143': attribute type 16 has an invalid length. [ 142.212145][ T5660] netlink: 'syz-executor143': attribute type 17 has an invalid length. [ 142.291545][ T5661] netlink: 'syz-executor143': attribute type 16 has an invalid length. [ 142.291564][ T5661] netlink: 'syz-executor143': attribute type 17 has an invalid length. [ 286.387718][ T32] INFO: task syz-executor143:5653 blocked for more than 143 seconds. [ 286.387739][ T32] Not tainted syzkaller #0 [ 286.387745][ T32] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.387753][ T32] task:syz-executor143 state:D stack:21984 pid:5653 tgid:5653 ppid:5652 task_flags:0x400140 flags:0x00080002 [ 286.387795][ T32] Call Trace: [ 286.387800][ T32] [ 286.387813][ T32] __schedule+0x17db/0x58f0 [ 286.387849][ T32] ? lockdep_hardirqs_on+0x7b/0x110 [ 286.387869][ T32] ? __pfx___schedule+0x10/0x10 [ 286.387886][ T32] ? schedule+0x90/0x2b0 [ 286.387899][ T32] ? lock_release+0x2e1/0x3c0 [ 286.387913][ T32] schedule+0x164/0x2b0 [ 286.387926][ T32] schedule_preempt_disabled+0x13/0x30 [ 286.387937][ T32] __mutex_lock+0x7c1/0x1550 [ 286.387953][ T32] ? __mutex_lock+0x5d4/0x1550 [ 286.387967][ T32] ? nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.387983][ T32] ? __pfx___mutex_lock+0x10/0x10 [ 286.387995][ T32] ? __kasan_kmalloc+0x93/0xb0 [ 286.388011][ T32] ? __nla_validate_parse+0x2429/0x2d50 [ 286.388025][ T32] ? do_syscall_64+0x166/0x520 [ 286.388038][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.388053][ T32] nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.388070][ T32] ? __pfx___nla_validate_parse+0x10/0x10 [ 286.388092][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.388105][ T32] ? trace_kmalloc+0x2a/0xf0 [ 286.388118][ T32] ? __kmalloc_noprof+0x38c/0x720 [ 286.388130][ T32] ? __nla_parse+0x40/0x60 [ 286.388145][ T32] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 286.388174][ T32] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 286.388189][ T32] genl_family_rcv_msg_doit+0x233/0x340 [ 286.388202][ T32] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 286.388219][ T32] ? bpf_lsm_capable+0x9/0x20 [ 286.388229][ T32] ? security_capable+0x7e/0x2c0 [ 286.388245][ T32] genl_rcv_msg+0x614/0x7a0 [ 286.388259][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.388268][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.388288][ T32] netlink_rcv_skb+0x226/0x4a0 [ 286.388302][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.388312][ T32] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 286.388332][ T32] ? down_read+0x2be/0x330 [ 286.388347][ T32] genl_rcv+0x28/0x40 [ 286.388356][ T32] netlink_unicast+0x7bd/0x940 [ 286.388373][ T32] netlink_sendmsg+0x813/0xb40 [ 286.388390][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.388407][ T32] ? apparmor_socket_sendmsg+0x98/0x360 [ 286.388419][ T32] ? rcu_is_watching+0x16/0xb0 [ 286.388433][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.388445][ T32] sock_sendmsg_nosec+0x14e/0x190 [ 286.388460][ T32] ____sys_sendmsg+0x54e/0x850 [ 286.388473][ T32] ? __pfx_____sys_sendmsg+0x10/0x10 [ 286.388488][ T32] ? import_iovec+0x73/0xa0 [ 286.388503][ T32] ___sys_sendmsg+0x2a5/0x360 [ 286.388513][ T32] ? __lock_acquire+0x747/0x2de0 [ 286.388525][ T32] ? __pfx____sys_sendmsg+0x10/0x10 [ 286.388560][ T32] __x64_sys_sendmsg+0x1b1/0x290 [ 286.388570][ T32] ? _raw_spin_unlock_irq+0x2e/0x50 [ 286.388582][ T32] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 286.388603][ T32] do_syscall_64+0x166/0x520 [ 286.388615][ T32] ? trace_irq_disable+0x3b/0x140 [ 286.388626][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.388636][ T32] ? clear_bhb_loop+0x70/0xc0 [ 286.388648][ T32] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.388661][ T32] RIP: 0033:0x7f9b45c43779 [ 286.388676][ T32] RSP: 002b:00007ffd096aa6a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 286.388687][ T32] RAX: ffffffffffffffda RBX: 00002000000000c0 RCX: 00007f9b45c43779 [ 286.388694][ T32] RDX: 0000000000000020 RSI: 0000200000000040 RDI: 0000000000000004 [ 286.388700][ T32] RBP: 00000000000f4240 R08: 0000000000000009 R09: 0000000000000009 [ 286.388706][ T32] R10: 0000000000000009 R11: 0000000000000246 R12: 00007f9b45cdb1e0 [ 286.388712][ T32] R13: 0000000000000002 R14: 00007ffd096aa6d0 R15: 00007ffd096aa6c0 [ 286.388727][ T32] [ 286.388735][ T32] INFO: task syz-executor143:5657 blocked for more than 143 seconds. [ 286.388743][ T32] Not tainted syzkaller #0 [ 286.388748][ T32] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.388752][ T32] task:syz-executor143 state:D stack:26184 pid:5657 tgid:5657 ppid:5654 task_flags:0x400140 flags:0x00080002 [ 286.388779][ T32] Call Trace: [ 286.388783][ T32] [ 286.388789][ T32] __schedule+0x17db/0x58f0 [ 286.388814][ T32] ? __pfx___schedule+0x10/0x10 [ 286.388830][ T32] ? schedule+0x90/0x2b0 [ 286.388843][ T32] schedule+0x164/0x2b0 [ 286.388856][ T32] schedule_preempt_disabled+0x13/0x30 [ 286.388867][ T32] __mutex_lock+0x7c1/0x1550 [ 286.388882][ T32] ? __mutex_lock+0x5d4/0x1550 [ 286.388896][ T32] ? nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.388910][ T32] ? __pfx___mutex_lock+0x10/0x10 [ 286.388921][ T32] ? __kasan_kmalloc+0x93/0xb0 [ 286.388936][ T32] ? __nla_validate_parse+0x2429/0x2d50 [ 286.388950][ T32] ? do_syscall_64+0x166/0x520 [ 286.388961][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.388976][ T32] nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.388992][ T32] ? __pfx___nla_validate_parse+0x10/0x10 [ 286.389014][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.389027][ T32] ? trace_kmalloc+0x2a/0xf0 [ 286.389038][ T32] ? __kmalloc_noprof+0x38c/0x720 [ 286.389050][ T32] ? __nla_parse+0x40/0x60 [ 286.389065][ T32] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 286.389075][ T32] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 286.389089][ T32] genl_family_rcv_msg_doit+0x233/0x340 [ 286.389103][ T32] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 286.389119][ T32] ? bpf_lsm_capable+0x9/0x20 [ 286.389128][ T32] ? security_capable+0x7e/0x2c0 [ 286.389144][ T32] genl_rcv_msg+0x614/0x7a0 [ 286.389161][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.389170][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.389190][ T32] netlink_rcv_skb+0x226/0x4a0 [ 286.389203][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.389214][ T32] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 286.389233][ T32] ? down_read+0x2be/0x330 [ 286.389248][ T32] genl_rcv+0x28/0x40 [ 286.389257][ T32] netlink_unicast+0x7bd/0x940 [ 286.389273][ T32] netlink_sendmsg+0x813/0xb40 [ 286.389290][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.389307][ T32] ? apparmor_socket_sendmsg+0x98/0x360 [ 286.389318][ T32] ? rcu_is_watching+0x16/0xb0 [ 286.389330][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.389342][ T32] sock_sendmsg_nosec+0x14e/0x190 [ 286.389356][ T32] ____sys_sendmsg+0x54e/0x850 [ 286.389368][ T32] ? __pfx_____sys_sendmsg+0x10/0x10 [ 286.389383][ T32] ? import_iovec+0x73/0xa0 [ 286.389398][ T32] ___sys_sendmsg+0x2a5/0x360 [ 286.389408][ T32] ? __lock_acquire+0x747/0x2de0 [ 286.389420][ T32] ? __pfx____sys_sendmsg+0x10/0x10 [ 286.389455][ T32] __x64_sys_sendmsg+0x1b1/0x290 [ 286.389465][ T32] ? _raw_spin_unlock_irq+0x2e/0x50 [ 286.389477][ T32] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 286.389497][ T32] do_syscall_64+0x166/0x520 [ 286.389509][ T32] ? trace_irq_disable+0x3b/0x140 [ 286.389519][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.389529][ T32] ? clear_bhb_loop+0x70/0xc0 [ 286.389540][ T32] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.389550][ T32] RIP: 0033:0x7f9b45c43779 [ 286.389558][ T32] RSP: 002b:00007ffd096aa6a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 286.389567][ T32] RAX: ffffffffffffffda RBX: 00002000000000c0 RCX: 00007f9b45c43779 [ 286.389574][ T32] RDX: 0000000000000020 RSI: 0000200000000040 RDI: 0000000000000004 [ 286.389580][ T32] RBP: 00000000000f4240 R08: 0000000000000009 R09: 0000000000000009 [ 286.389586][ T32] R10: 0000000000000009 R11: 0000000000000246 R12: 00007f9b45cdb1e0 [ 286.389592][ T32] R13: 0000000000000002 R14: 00007ffd096aa6d0 R15: 00007ffd096aa6c0 [ 286.389607][ T32] [ 286.389611][ T32] INFO: task syz-executor143:5658 blocked for more than 143 seconds. [ 286.389618][ T32] Not tainted syzkaller #0 [ 286.389622][ T32] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.389626][ T32] task:syz-executor143 state:D stack:26184 pid:5658 tgid:5658 ppid:5655 task_flags:0x400140 flags:0x00080002 [ 286.389652][ T32] Call Trace: [ 286.389656][ T32] [ 286.389663][ T32] __schedule+0x17db/0x58f0 [ 286.389689][ T32] ? __pfx___schedule+0x10/0x10 [ 286.389705][ T32] ? schedule+0x90/0x2b0 [ 286.389720][ T32] schedule+0x164/0x2b0 [ 286.389732][ T32] schedule_preempt_disabled+0x13/0x30 [ 286.389743][ T32] __mutex_lock+0x7c1/0x1550 [ 286.389758][ T32] ? __mutex_lock+0x5d4/0x1550 [ 286.389772][ T32] ? nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.389786][ T32] ? __pfx___mutex_lock+0x10/0x10 [ 286.389798][ T32] ? __kasan_kmalloc+0x93/0xb0 [ 286.389813][ T32] ? __nla_validate_parse+0x2429/0x2d50 [ 286.389826][ T32] ? do_syscall_64+0x166/0x520 [ 286.389837][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.389852][ T32] nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.389868][ T32] ? __pfx___nla_validate_parse+0x10/0x10 [ 286.389890][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.389903][ T32] ? trace_kmalloc+0x2a/0xf0 [ 286.389914][ T32] ? __kmalloc_noprof+0x38c/0x720 [ 286.389926][ T32] ? __nla_parse+0x40/0x60 [ 286.389941][ T32] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 286.389951][ T32] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 286.389965][ T32] genl_family_rcv_msg_doit+0x233/0x340 [ 286.389979][ T32] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 286.389995][ T32] ? bpf_lsm_capable+0x9/0x20 [ 286.390005][ T32] ? security_capable+0x7e/0x2c0 [ 286.390020][ T32] genl_rcv_msg+0x614/0x7a0 [ 286.390033][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.390042][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.390063][ T32] netlink_rcv_skb+0x226/0x4a0 [ 286.390075][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.390086][ T32] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 286.390105][ T32] ? down_read+0x2be/0x330 [ 286.390121][ T32] genl_rcv+0x28/0x40 [ 286.390129][ T32] netlink_unicast+0x7bd/0x940 [ 286.390146][ T32] netlink_sendmsg+0x813/0xb40 [ 286.390167][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.390184][ T32] ? apparmor_socket_sendmsg+0x98/0x360 [ 286.390195][ T32] ? rcu_is_watching+0x16/0xb0 [ 286.390207][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.390219][ T32] sock_sendmsg_nosec+0x14e/0x190 [ 286.390233][ T32] ____sys_sendmsg+0x54e/0x850 [ 286.390246][ T32] ? __pfx_____sys_sendmsg+0x10/0x10 [ 286.390260][ T32] ? import_iovec+0x73/0xa0 [ 286.390275][ T32] ___sys_sendmsg+0x2a5/0x360 [ 286.390285][ T32] ? __lock_acquire+0x747/0x2de0 [ 286.390297][ T32] ? __pfx____sys_sendmsg+0x10/0x10 [ 286.390332][ T32] __x64_sys_sendmsg+0x1b1/0x290 [ 286.390342][ T32] ? _raw_spin_unlock_irq+0x2e/0x50 [ 286.390354][ T32] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 286.390374][ T32] do_syscall_64+0x166/0x520 [ 286.390386][ T32] ? trace_irq_disable+0x3b/0x140 [ 286.390396][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.390406][ T32] ? clear_bhb_loop+0x70/0xc0 [ 286.390417][ T32] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.390427][ T32] RIP: 0033:0x7f9b45c43779 [ 286.390435][ T32] RSP: 002b:00007ffd096aa6a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 286.390444][ T32] RAX: ffffffffffffffda RBX: 00002000000000c0 RCX: 00007f9b45c43779 [ 286.390451][ T32] RDX: 0000000000000020 RSI: 0000200000000040 RDI: 0000000000000004 [ 286.390457][ T32] RBP: 00000000000f4240 R08: 0000000000000009 R09: 0000000000000009 [ 286.390463][ T32] R10: 0000000000000009 R11: 0000000000000246 R12: 00007f9b45cdb1e0 [ 286.390469][ T32] R13: 0000000000000002 R14: 00007ffd096aa6d0 R15: 00007ffd096aa6c0 [ 286.390484][ T32] [ 286.390488][ T32] INFO: task syz-executor143:5660 blocked for more than 143 seconds. [ 286.390495][ T32] Not tainted syzkaller #0 [ 286.390499][ T32] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.390503][ T32] task:syz-executor143 state:D stack:26120 pid:5660 tgid:5660 ppid:5656 task_flags:0x400140 flags:0x00080002 [ 286.390529][ T32] Call Trace: [ 286.390532][ T32] [ 286.390538][ T32] __schedule+0x17db/0x58f0 [ 286.390564][ T32] ? __pfx___schedule+0x10/0x10 [ 286.390580][ T32] ? schedule+0x90/0x2b0 [ 286.390592][ T32] schedule+0x164/0x2b0 [ 286.390605][ T32] schedule_preempt_disabled+0x13/0x30 [ 286.390616][ T32] __mutex_lock+0x7c1/0x1550 [ 286.390631][ T32] ? __mutex_lock+0x5d4/0x1550 [ 286.390645][ T32] ? nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.390661][ T32] ? __pfx___mutex_lock+0x10/0x10 [ 286.390673][ T32] ? __kasan_kmalloc+0x93/0xb0 [ 286.390688][ T32] ? __nla_validate_parse+0x2429/0x2d50 [ 286.390701][ T32] ? do_syscall_64+0x166/0x520 [ 286.390712][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.390726][ T32] nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.390742][ T32] ? __pfx___nla_validate_parse+0x10/0x10 [ 286.390764][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.390777][ T32] ? trace_kmalloc+0x2a/0xf0 [ 286.390789][ T32] ? __kmalloc_noprof+0x38c/0x720 [ 286.390801][ T32] ? __nla_parse+0x40/0x60 [ 286.390816][ T32] ? genl_family_rcv_msg_attrs_parse+0x20b/0x2f0 [ 286.390826][ T32] ? genl_family_rcv_msg_attrs_parse+0x265/0x2f0 [ 286.390840][ T32] genl_family_rcv_msg_doit+0x233/0x340 [ 286.390853][ T32] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 286.390869][ T32] ? bpf_lsm_capable+0x9/0x20 [ 286.390879][ T32] ? security_capable+0x7e/0x2c0 [ 286.390894][ T32] genl_rcv_msg+0x614/0x7a0 [ 286.390907][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.390916][ T32] ? __pfx_nfsd_nl_listener_set_doit+0x10/0x10 [ 286.390936][ T32] netlink_rcv_skb+0x226/0x4a0 [ 286.390949][ T32] ? __pfx_genl_rcv_msg+0x10/0x10 [ 286.390959][ T32] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 286.390979][ T32] ? down_read+0x2be/0x330 [ 286.390994][ T32] genl_rcv+0x28/0x40 [ 286.391003][ T32] netlink_unicast+0x7bd/0x940 [ 286.391019][ T32] netlink_sendmsg+0x813/0xb40 [ 286.391036][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.391053][ T32] ? apparmor_socket_sendmsg+0x98/0x360 [ 286.391064][ T32] ? rcu_is_watching+0x16/0xb0 [ 286.391076][ T32] ? __pfx_netlink_sendmsg+0x10/0x10 [ 286.391088][ T32] sock_sendmsg_nosec+0x14e/0x190 [ 286.391102][ T32] ____sys_sendmsg+0x54e/0x850 [ 286.391115][ T32] ? __pfx_____sys_sendmsg+0x10/0x10 [ 286.391129][ T32] ? import_iovec+0x73/0xa0 [ 286.391144][ T32] ___sys_sendmsg+0x2a5/0x360 [ 286.391158][ T32] ? __lock_acquire+0x747/0x2de0 [ 286.391170][ T32] ? __pfx____sys_sendmsg+0x10/0x10 [ 286.391182][ T32] ? _raw_spin_unlock_irqrestore+0x47/0x80 [ 286.391215][ T32] __x64_sys_sendmsg+0x1b1/0x290 [ 286.391225][ T32] ? _raw_spin_unlock_irq+0x2e/0x50 [ 286.391237][ T32] ? __pfx___x64_sys_sendmsg+0x10/0x10 [ 286.391257][ T32] do_syscall_64+0x166/0x520 [ 286.391269][ T32] ? trace_irq_disable+0x3b/0x140 [ 286.391279][ T32] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.391289][ T32] ? clear_bhb_loop+0x70/0xc0 [ 286.391301][ T32] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.391310][ T32] RIP: 0033:0x7f9b45c43779 [ 286.391318][ T32] RSP: 002b:00007ffd096aa6a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 286.391328][ T32] RAX: ffffffffffffffda RBX: 00002000000000c0 RCX: 00007f9b45c43779 [ 286.391334][ T32] RDX: 0000000000000020 RSI: 0000200000000040 RDI: 0000000000000004 [ 286.391340][ T32] RBP: 00000000000f4240 R08: 0000000000000009 R09: 0000000000000009 [ 286.391346][ T32] R10: 0000000000000009 R11: 0000000000000246 R12: 00007f9b45cdb1e0 [ 286.391352][ T32] R13: 0000000000000002 R14: 00007ffd096aa6d0 R15: 00007ffd096aa6c0 [ 286.391367][ T32] [ 286.391374][ T32] [ 286.391374][ T32] Showing all locks held in the system: [ 286.391381][ T32] locks held by kworker/u8:1/13: 2, on CPU#1: [ 286.391388][ T32] #0: ffff88801c0ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 286.391416][ T32] #1: ffffc90000127c40 ((work_completion)(&(&kfence_timer)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630 [ 286.391443][ T32] locks held by khungtaskd/32: 1, last CPU#0: [ 286.391450][ T32] #0: ffffffff8fd5c8a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 [ 286.391496][ T32] locks held by getty/5371: 2, on CPU#0: [ 286.391503][ T32] #0: ffff8880372c70a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 286.391527][ T32] #1: ffffc900032432e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360 [ 286.391554][ T32] locks held by syz-executor143/5653: 2, on CPU#1: [ 286.391560][ T32] #0: ffffffff912b9c28 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 286.391582][ T32] #1: ffffffff9009f740 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.391608][ T32] locks held by syz-executor143/5657: 2, on CPU#1: [ 286.391615][ T32] #0: ffffffff912b9c28 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 286.391636][ T32] #1: ffffffff9009f740 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.391665][ T32] locks held by syz-executor143/5658: 2, on CPU#1: [ 286.391671][ T32] #0: ffffffff912b9c28 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 286.391692][ T32] #1: ffffffff9009f740 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.391718][ T32] locks held by syz-executor143/5660: 2, on CPU#1: [ 286.391724][ T32] #0: ffffffff912b9c28 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 286.391746][ T32] #1: ffffffff9009f740 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.391771][ T32] locks held by syz-executor143/5661: 2, on CPU#0: [ 286.391778][ T32] #0: ffffffff912b9c28 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 [ 286.391799][ T32] #1: ffffffff9009f740 (nfsd_mutex){+.+.}-{4:4}, at: nfsd_nl_listener_set_doit+0x53d/0x1ab0 [ 286.391824][ T32] [ 286.391827][ T32] ============================================= [ 286.391827][ T32] [ 286.391833][ T32] NMI backtrace for cpu 0 [ 286.391848][ T32] CPU: 0 UID: 0 PID: 32 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 286.391858][ T32] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 286.391864][ T32] Call Trace: [ 286.391868][ T32] [ 286.391871][ T32] dump_stack_lvl+0xe8/0x150 [ 286.391885][ T32] nmi_cpu_backtrace+0x274/0x2d0 [ 286.391896][ T32] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 286.391911][ T32] nmi_trigger_cpumask_backtrace+0x17d/0x390 [ 286.391923][ T32] sys_info+0x135/0x170 [ 286.391932][ T32] watchdog+0xfd7/0x1030 [ 286.391946][ T32] ? watchdog+0x1c7/0x1030 [ 286.391958][ T32] kthread+0x38b/0x480 [ 286.391968][ T32] ? __pfx_watchdog+0x10/0x10 [ 286.391976][ T32] ? __pfx_kthread+0x10/0x10 [ 286.391986][ T32] ret_from_fork+0x514/0xb70 [ 286.392002][ T32] ? __pfx_ret_from_fork+0x10/0x10 [ 286.392016][ T32] ? __switch_to+0xc89/0x1420 [ 286.392029][ T32] ? __pfx_kthread+0x10/0x10 [ 286.392039][ T32] ret_from_fork_asm+0x1a/0x30 [ 286.392060][ T32] [ 286.392063][ T32] Sending NMI from CPU 0 to CPUs 1: [ 286.392131][ C1] NMI backtrace for cpu 1 [ 286.392145][ C1] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 PREEMPT(full) [ 286.392165][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 286.392175][ C1] RIP: 0010:pv_native_safe_halt+0xf/0x20 [ 286.392201][ C1] Code: 6b 8a 02 e9 c3 08 03 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d a3 65 21 00 fb f4 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 [ 286.392216][ C1] RSP: 0018:ffffc900001a7e40 EFLAGS: 00000242 [ 286.392232][ C1] RAX: 000000000005d50d RBX: ffffffff819bfacc RCX: 8000000000000001 [ 286.392246][ C1] RDX: 0000000000000001 RSI: ffffffff8e459e4b RDI: ffffffff8c6dd880 [ 286.392258][ C1] RBP: ffffc900001a7f10 R08: ffff8880b8533a1b R09: 1ffff110170a6743 [ 286.392272][ C1] R10: dffffc0000000000 R11: ffffed10170a6744 R12: 0000000000000000 [ 286.392285][ C1] R13: 1ffff11003ed2bb8 R14: 1ffff92000034fd0 R15: dffffc0000000000 [ 286.392299][ C1] FS: 0000000000000000(0000) GS:ffff888123bd0000(0000) knlGS:0000000000000000 [ 286.392314][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 286.392326][ C1] CR2: 000055f60becda38 CR3: 000000000fb48000 CR4: 00000000003526f0 [ 286.392343][ C1] Call Trace: [ 286.392350][ C1] [ 286.392356][ C1] default_idle+0x9/0x20 [ 286.392382][ C1] default_idle_call+0x72/0xb0 [ 286.392409][ C1] do_idle+0x1cc/0x540 [ 286.392428][ C1] ? __pfx_do_idle+0x10/0x10 [ 286.392446][ C1] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 286.392470][ C1] cpu_startup_entry+0x43/0x60 [ 286.392487][ C1] start_secondary+0x101/0x110 [ 286.392515][ C1] common_startup_64+0x13e/0x157 [ 286.392546][ C1] [ 286.393086][ T32] Kernel panic - not syncing: hung_task: blocked tasks [ 288.380836][ T32] CPU: 0 UID: 0 PID: 32 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) [ 288.389932][ T32] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 288.399973][ T32] Call Trace: [ 288.403251][ T32] [ 288.406173][ T32] vpanic+0x56d/0xa60 [ 288.410155][ T32] ? __pfx_vpanic+0x10/0x10 [ 288.414650][ T32] ? console_srcu_read_unlock+0x3a/0x60 [ 288.420188][ T32] panic+0xc5/0xd0 [ 288.423900][ T32] ? __pfx_panic+0x10/0x10 [ 288.428312][ T32] ? wq_watchdog_touch+0xf9/0x160 [ 288.433327][ T32] ? nmi_trigger_cpumask_backtrace+0x24d/0x390 [ 288.439492][ T32] watchdog+0x1030/0x1030 [ 288.443814][ T32] ? watchdog+0x1c7/0x1030 [ 288.448218][ T32] kthread+0x38b/0x480 [ 288.452272][ T32] ? __pfx_watchdog+0x10/0x10 [ 288.456934][ T32] ? __pfx_kthread+0x10/0x10 [ 288.461510][ T32] ret_from_fork+0x514/0xb70 [ 288.466096][ T32] ? __pfx_ret_from_fork+0x10/0x10 [ 288.471199][ T32] ? __switch_to+0xc89/0x1420 [ 288.475869][ T32] ? __pfx_kthread+0x10/0x10 [ 288.480446][ T32] ret_from_fork_asm+0x1a/0x30 [ 288.485217][ T32] [ 288.488496][ T32] Kernel Offset: disabled [ 288.492837][ T32] Rebooting in 86400 seconds..